...And here is Mangala Vallis as seen in 1980 by Viking orbiter 1 : one of its last images taken before the end of its mission. I saw the building of this mosaic at JPL in 1982 and at this time, Marcia Neugebauer (working in Conway Snyder's team) did all the photographic prints with geometric corrections + their careful pasting together with glue (!) into a large mosaic to be photographed again. It was a stunning mosaic to see at JPL (it was a BIG one) at ground floor of Building 264 (then dubbed the "Viking Building"). It was presented by the few Mars enthusiasts left then and had a lot of succcess among visitors and planetary geologists... There are a lot of stories to tell about the profound implications this picture had on future programs, such as MGCO (shortened as MO, then MGS)... Now you see it (reduced at 30% of its original size to fill in the Forum), with pictures pasted together with modern computer techniques (not glue...) and then colorized. Enjoy !

... And here is Olympus Mons enshrouded by its calm afternoon clouds. This famous Martian perspective from Viking orbiter 1, which hand-made mosaic was published everywhere in 1976, is now revisited in 2011 with modern computer techniques. Enjoy !

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